Vector databases

Storing and searching high-dimensional space at production scale.

Level 1

Orientation

What it is, and why it matters.

Why does similarity search need an index at all?

Comparing a query against every vector is exact and simple, and it stops being viable at a few hundred thousand rows. Here is where the wall is, and what an index trades away to get past it.

1 min

Did you know

Quick tricks in this topic — apart from the ladder, because a tip is not a rung.

Did you know pgvector ignores your index if the operator doesn't match? 1 min